Venting Installation Tips; Venting Configurations - Raypak HD401 Installation & Operating Instructions Manual

Venting Installation Tips

Support piping:
· horizontal runs- at least every five (5) feet.
· vertical runs - use braces:
· under or near elbows
Follow items listed below to avoid personal injury or
property damage.
· Cut nonmetallic intake pipe with fine-toothed hack-
saw.
· Do not use nonmetallic intake pipe or fittings that
are cracked or damaged.
· Do not use nonmetallic intake fittings if they are
cut or altered.
· Do not drill holes, or use screws or rivets, in non-
metallic intake pipe or fittings.
To make metallic vent joints:
· Do not install seams of vent pipe on bottom of
runs.
· 100% Seal all joints and seams with high temper-
ature silicone sealant.
WARNING: Examine the venting system at least
once a year. Check all joints and vent pipe
connections for tightness, corrosion or deterioration.
NOTE: The words "Flue Exhaust", "Flue" and
"Exhaust Vent" are used interchangeably.

Venting Configurations

For heaters connected to gas vents or chimneys, vent
installations shall be in accordance with the section
**Vent lengths are based on a lateral length of 2 feet. Refer to the latest edition of the NFGC for further details. (ANSI Z223.1)
Maximum 4 elbows.
on, Venting of Equipment, of the latest edition of
NFGC, or in Canada, B149 Installation Code for Gas
Burning Appliances and Equipment, or applicable pro-
visions of local building codes.
Fig. 20: Natural Draft Vertical Venting (Category I)
Table K: Natural Draft Vertical Venting
25
8 FEET OR LESS